Vapor supplying device for motors



July 21, 1936. E. L. BLooMBERG VAPOR SUPPLYING DEVICE FOR MOTORS FiledMarch 16, 1951 2 Sheets-Sheet l l NV EN TOR.

A TTOILVEYS.

July 21, 1936- E. l.. BLOOMBERG 2,048,175

VAPOR SUPPLYING DEVICE FOR MOTORS Filed March 16, 1931 2 Sheets-Sheet 2wij/ fr f; T3. M

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I l N VEN TOR. fori/MTD L. BLOQ/751236,

ATTORNEYS.

Patented July 21, 1936 UNITEDy STATES PATENT OFFICE VAPOR SUPPLYINGDEVICE FOB. MOTORS Edward L. Bloomberg, Cleveland Heights, OhioApplication March 16, 1931, Serial No. 523,135

6 Claims. (Cl. 12S-196) This invention, as indicated, relates to a vaporsupplying device for motors. More particularly it comprises a vaporsupplying device adapted to supply at a substantially constant rate tothe combustion chambers of a gasoline engine a vapor, preferably formedof oil capable of withstanding high temperature, with a view, amongother things, of eliminating sticky valves, preventing the formation ofcarbon, promoting quiet running of the motor, and retaining the cylindercompression.

Heretofore it has been proposed to supply oil or water vapor tocombustion chambers of gasoline engines through the intake manifolddirectly or through the carburetor and manifold, with a view toimproving the running conditions of the motor and preventing theformation of carbon, but such devices have not been provided withautomatic means for making substantially uniform the quantity of vaporso supplied whether the motor was idling or operating at high speed.

The principal. object of the present invention is to provide an improveddevice for supplying vapor of the character indicated to the combustionchambers of a gasoline engine to improve the operative conditionsthereof. Another object of the invention is to provide a pressureresponsive control for the vapor supply to the combustion chambers,which will be proportioned so as to supply vapor in accordance with theneeds of the engine at various rates of speed. Another object of theinvention is to provide a device of simple construction and easilyadjusted to various operating conditions, which will supply suitablevapor to the combustion chambers of a gasoline engine in predeterminedamounts for various rates of speed. Other and further objects of theinvention will appear in the course of the following description.

Figure 1 is a view in elevation and partly in section showing a vaporsupplying device for a gasoline engine embodying the `principles of theinvention;

Figure 2 is a fragmentary view of a modified form of device similar tothat shown in Figure l;

Figure 3 is a view showing a further modied form of device in which adiierent type of 'iiuid outlet yis employed; and

Figure 4 is a modified form of construction of the general type shown inFigure 3.

As is shown in Figure 1 of the drawings, the preferred form of vaporsupplying device I is preferably supported .by means of a bracket 2secured to the front of the 'instrument panel I0 of an yautomobile. Thebracket preferably is formed integrally with the top or cover section 3of the device which is heldin air-tight relation withthebase section-4which serves as a container for the liquid used informing the vapor. Thebase section is preferably in the form of a glass jar open at its upperend and held against the top or cover section by means of a stirrup orU- shaped clamping member 5 engaged through suitable ears (not shown) atthe sides of the cover section, the ends of the member beingscrewthreaded to be engaged by thumb nuts 6.

The cap is preferably provided on 'its upper side with'upstanding bosses1, 8, and enlargements ll, I2 on its under surface beneath said bosses.respectively. It is also provided with a thickened wall section I3adjacent one corner, through which a screw-threaded aperture is providedto receive an adjusting screw I4 formed with a knurled head I5 and alower section or shank I6 of reduced diameter, at the extreme end ofwhich is engaged a disc I1 forming an abutment for a coiled spring I8engaged about the reduced shank of said adjusting screw, above whichspring is provided a bearing member inl the form of a ball I9 centrallyperforated to engage about the 20 reduced shank of the adjusting screw.At the point where the main body portion of the adjusting screw meetsthe reduced shank thereof, the surface is preferably rounded to providea fixed bearing member 2| for a purpose presently to be described. Alock nut 22 may be engaged on the screw-threaded body section of theadjusting screw in a position to engage against an inclined surface 23on the cap member to prevent vibration changing any set adjustment ofthe screw.

The boss 1 on the upper surface of the cap or cover member is providedwith a central recess 4and is of extended height providing a sight feedin the form of a lateral aperture 24 through which may be seen a sectionof a glass cylinder 25 held between packing elements 26, 21, underpressure of a coupling member 28 which may be locked in place by aspecial lock nut 29.l The vapor supply line 3| is connected by asuitable terminal element 32 with the coupling member 28 and by anothercoupling element 33 with the intake manifold 34 of a gas engine.

Centrally of the recess in the boss 1 a smal aperture is provided, onthe under side of which is formed a conical seat 35 for engagement withthe conical point ofja needle valve 36. The boss I I on the under sideof the cover is provided with a recess 31 in alignment with the recess38 in the boss 1 and a screw-threaded Vsleeve 39 engaged therewithprovides a support for the shank 4I of the needle valve. The spaceintermediate the screw-threaded sleeve and the needle valve provides areservoir for the vapor preliminary to its entering the vapor supplyline to the intake manlfold. The sleeve 39y is provided with acountersunk recess 42 on its under surface adapted to receive a spring43 engaged about the shank of the needle valve and bearing against a xedabutment 44 thereon adjacent its lower end. The

spacing of the abutment from the under face of the sleeve 39 is such asto prevent complete seating of the needle valve at any time. The recessin the enlargement II is provided with a lateral passageway 45communicating with the reservoir, and said passageway opens into thecontainer above the level of the liquid therein. A filler plug 46provided with a tubular extension 41 which is of a length to closelyapproach the bottom of the container, is provided intermediate thebosses 1 and 8 to admit the outside air to the container closelyadjacent the bottom so that air entering through a central air vent 48in said plug mayv be discharged through the open end `of said extension,and agitate said liquid to produce an oilcarrying vapor in the upperportion of the chamber above the liquid level.

The boss I2 is provided with an enlarged recess 49 screw-threaded toreceive a cup-shaped casing 58 having an air vent 5I within which ispositioned a metal bellows 52 sealed at its marginal portions againstthe upper edge of the casing and held in air-tight relation thereto bymeans of a screw-threaded cap member 53. The cap member is preferablyprovided with an upstanding boss 54 having a central passageway 55 whichcommunicates with a vacuum line 56 connected with the intake manifold ofthe gasoline engine. The upper end of the bellows is formed with acentral inlet 58 in alinement with the passageway 55. A nipple 51, isengaged about the screwthreaded portion of the upstanding boss to securesuch line to the cap member, and a suitable nipple 66 is provided toconnect said vacuum line withA the intake manifold. 'I'he lower surfaceof the bellows is provided with a downwardly extending rod 6I whichpasses through the aperture 62 in the base of the casing and an aperture63 in the boss I2 in alignment therewith. The lower end of said rod isscrew-threaded to receive a nut 64 and a. lock nut 65 providing anabutment for the coiled spring 66 engaged over said rod and bearingagainst the under surface of the enlargement I2 about said aperture.'I'he lower end of the rod is provided with a transverse aperturethrough which a pivot pin 61 is engaged, said pivot pin forming asupport for a control lever 68 extending substantially horizontallyacross the container adjacent its upper portion. 'I'he control lever ispreferably provided with a slot 10 adjacent its free end which permitsthe same to be engaged about the reduced shank on the adjusting screwintermediate the fixed bearing surface thereon and the spring pressedball bearing heretofore described. The lever is formed with a slightlyrounded bearing surface adjacent the point of its connection with theadjusting screw against which the lower end of the needle valve bears.

The device just described is adapted to maintain a substantially uniformvapor supply to the combustion chambers through the action of the metalbellows control mechanism. Thus, as the effective vacuum in the intakemanifold of the engine grows less with the wider opening of the throttleand higher speed, the bellows will expand, shifting the endof thecontrol lever down and lowering the needle valve and allowing morelubricating vapor or the like to be taken into the engine. As the vacuumbecomes more effective again through the closing ofthe throttle, reverseaction to that described will take place and instead of feeding morevapor, the needle valve will v close to reduce the amount being fed.

' engine acts through the passageway 56 to reduce the air pressurewithin'the bellows and permits the atmospheric pressure on the outsidethereof to collapse the same when the low speed operation of the engineis in effect, a closed bellows 5 of the type shown in Figure 2 may beused, in which event the pivot point for the control lever is also movedto a new position.

In said modified form of construction shown in Figure 2, the casing 1Ihas no air vent and 10 the vacuum line 56 connects with the interior ofthe casing and reduces the air pressure about the bellows 12. Thebellows is of the completely closed type, having a predetermined amountof air or gas within the same and is suitably sup- 15 ported by means ofa spider 13 engaged between the cap member 53 and the cup shaped casing1 I. 'I'he lower surface of the bellows is provided with a downwardlyextending rod 14 which closely ilts the passageway 15 through the bossat the 20 lower end of the casing and extends through an opening 16 inalignment therewith. The lower end of the rod is provided with a coilspring and its abutment and la lock nut therefor, as well as a pivot pinfor the control lever similar to that 25 shown in Figure 1. The controllever 11 is provided with an intermediate aperture 18 through which thereduced shank portion 19 of the adjusting screw 8| is engaged.

The adjusting screw, in place of being posi- 30 tioned within the topsection of the container at one corner thereof, is set through the topwall 82 of the casing and extends vertically ldownward therefrom. A locknut 83 permits the adjusting screw to be held at any predeterminedposition. 35 The free end of the control lever 84 abuts against thelower end of the needle valve which functions in exactly the same manneras the needle valve shown in Figure l. It is unnecessary to describe indetail the remaining elements of the structure, inasmuch as theycorrespond almost exactly in every respect to those shown in Figure 1.

'I'he modified form of construction shown in Figure 3 of the drawingsdiscloses an apparatus for delivering a small stream of oil or otherliquid designed to prevent carbon formation, to the intake passageway ofa gas engine. The parts of the apparatus in most of the instances shownare identical with those shown in Figure l and like reference charactershave been applied thereto. The features of the construction differingfrom the devices heretofore described will now be set forth.

The container I is supported upon a bracket 9| secured to the front ofthe instrument panel 92 of 55 an automobile. The bracket preferably hason its upper side a plurality of spring fingers 93,

94, within which the base section 4 for the liquid used is h eld. Thecontainer may be firmly held within the clips by means of a band 95preferably of spring material engaging about the spring fingers. Thecontainer is preferably in the form of a glass jar open at its upper endand having set thereover a cap or cover member which serves as a.closure for the container and as a support for the various elements ofthe device.

'I'he cap member is preferably secured to the upper portion of thecontainer in air-tight relation by means of cement or any other suitablesealing means (not shown).

The needle valve, control lever, and bellows and associated parts areall disposed as shown in Figure l, but in place of admitting air throughthe ller plug and its ex nsion, to agitate and vaporize the liquid wit\n the container, the device 75 has a ller plug 96 with an air vent butwithout an extension. The lateral passageway to the reservoir and theline to the intake manifold is provided with a tubular extension 91through which liquid is drawn and carried toward the point of dischargeinto the intake manifold where it meets twine ascending fuel mixture andmingles there- The modified construction shown in Figure 4 incorporatesthe construction shown in Figure 2 and heretofore described in detail,but in place of admitting air to the ller plug and its extension toagitate and vaporize the liquid within the container, the device has aller plug with an air vent, but without an extension therefrom to thelower portion of the liquid. The lateral passageway to the reservoir andthe line to the intake manifold is provided with a tubular extensionthrough which liquid is drawn and carried toward the point of dischargeinto the intake manifold where it meets the ascending fuel and mixtureand mingles therewith. This construction differs from that shown inFigure 3 merely in that it uses the closed type of bellows and has adierent position of the fulcrum for the control lever in which latterrespects it, as heretofore stated, resembles the construction shown inFigure 2.

Other modes of applying the principle of my invention may be employedinstead of the one explained, change being made as regards the'structure herein disclosed, provided the means Other modes of applyingthe principle of my equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim as my invention:

l. An apparatus of the character set forth, having in combination acontainer comprising a liquid receptacle and a closure therefor providedwith an air vent, a iuid delivery passageway communicating with saidcontainer and operatively connected therewith at all times through aminimum opening with the intake passageway of a gasoline engine, andmeans wholly independent of said first-named passageway responsive tospeed variations in said engine associated .with the intake passagewayof said engine for increasing said opening for the admission of fluid tosaid first-named passageway, said means being wholly separate from saiduid delivery passageway.

2. An apparatus of the character set forth, having in combination acontainer comprising a liquid receptacle and a, closure thereforprovided with an air vent, a fluid delivery passageway communicatingwith said container and operatively connected therewith at all timesthrough a minimum opening with the intake passageway of a gasolineengine, and pressure responsive means wholly independent of saidfirst-named passageway associated with the intake passageway of agasoline engine and operable proportionally to the speed of said enginefor increasing said opening for admitting a greater amount of uid tosaid first-named passageway at high speed than at idling speed of saidengine, said means being wholly separate from said fluid deliverypassageway.

3. An apparatus of the character set forth. having in combination acontainer comprising a liquid receptacle and a closure therefor providedwith an air vent member extending downwardly and'opening adjacent thebottom of said liquid receptacle, a fluid delivery passagewaycommunicating with the vapor space above the liquid level in the upperpart of said container and connected with the intake passageway of agasoline engine, a valve associated with said passageway for controllingthe amount of uid admitted thereto, means to prevent complete seat- 5 ving of said valve at any time, and pressure responsive means whollyindependent of said firstnamed passageway connected with said intakepassageway for controlling the degree of opening of said valve, saidmeans being wholly separate from said uid delivery passageway.

4. An apparatus of the character set forth, having in combination acontainer comprising a liquid receptacle and a closure therefor, an airinlet passageway extending into the liquid within said container andadapted to agtate and partially vaporize said liquid, a uid deliverypassageway communicating at one-end with the space above the liquidlevel in said container and at the other end with the intake passageway20 of 'agasoline engine, a valve associated with said passageway forcontrolling the amount of vapor formed in the space above said liquidlevel admitted thereto, means to prevent complete seating of said valveat any time, and pressure 25 responsive means wholly independent of saidfirst-named passageway connected with said intake passagewayfor'controlling said valve, said means being wholly separate from said4fluid eliv assa eway. d 5. ellinripappaatus of the character described,having in combination a container adapted to receive a fluid suitablefor the prevention of carbon formation in gasoline motors, a cover forsaid uid container having an air vent and providing 35 an outlet fluiddelivery passageway from the interior of said container, meansconnecting said passageway with the intake passageway of a gasolineengine, a valve associated with said outlet passageway of saidcontainer, means to prevent complete seating of said valve at any time,a control lever associated with said container and operatively relatedto said valve, adjustable means for pivotally supporting said controllever, and pressure responsive means associated with said control leverfor controlling the position of said valve, said pressure responsivemeans having means wholly independent of said vrstnamed passagewayconnecting the same with the inlet passageway of said gasoline engine.

6. An apparatus of the character described, having in combination acontainer adapted to receive a fluid suitable for the prevention ofcarbon formation in gasoline motors, a cover for said uid containerhaving an air vent and providing an outlet iiuid delivery passagewayfrom the interior of said container, means connecting said passagewaywith the intake passageway of a gasoline engine, a valve associated withsaid outlet passageway of said container, a control lever 60 associatedwith said container and operatively related to said valve. adjustablemeans for pivotally supporting said control lever, and pressureresponsive means associated with said control lever for controlling theposition of said valve, said pressure responsive means comprising asealed bellows having a predetermined internal uid pressure and anindependent passageway to the intake manifold for providing underoperative conditions reduced pressure exteriorly of said bellows, saidmeans being wholly separa from said fluid delivery passageway.

EDWARD L. BLOOMBERG.

